package operation;

import book.BookList;

import java.util.Scanner;

/**
 * Created with IntelliJ IDEA.
 * Description:
 * User: 74646
 * Date: 2022-02-10
 * Time: 16:47
 */
public interface IOperation {
    void work(BookList bookList);
    //因为在每个操作类中都要输入数据，所以将 scanner 引用定义在接口中
    Scanner scanner = new Scanner(System.in);
}
